10.26
ELECTRICAL
9923523 - 2012
RANGER
RZR 570 Service Manual
© Copyright 2011 Polaris Sales Inc.
Charging System Testing Flow Chart
Whenever charging system problems are suspected, proceed with the following system check after verifying that all wires
are in good condition, connected and not exposed or pinched.
Using a multitester set on D.C. volts, mea-
sure the battery open circuit voltage (see
Battery Service). It should be 12.4 volts or
more. Is it?
Meter Setting: DC Volts
With the transmission in Park, start the
Meter Setting: DC Amps
Perform system
“Break Even Amperage”
Meter Setting: DC Volts
Reconnect the alternator wires. Measure
between the Red and Black terminals with the
Is voltage present?
If all of the previous tests indicate a good
Yes
No
No
Yes
Yes
Remove the battery and properly ser-
vice. Reinstall the fully charged battery
or a fully charged shop battery.
No
Check Key off Current Draw.
Yes
Check for owner modification, and
discuss operating habits. The battery
will continually discharge if operated
below the “Break Even” RPM. Con-
tinued problems would call for battery
inspection.
Yes
Inspect the wiring harness between
the regulator and the stator for
remove the stator cover.
Inspect the flywheel magnets, stator
coils and stator wires for damage.
No
Check battery and battery connections.
Also check wire connections and wire
condition. Repair or replace faulty wiring
or components.
No
engine and increase RPM to between 3000
test outlined in this chapter.
Does charging occur as specified?
Ohm stator wires, if bad replace stator, if good,
continue with alternator output test.
Meter Setting: AC Volts
Disconnect the Yellow wires from the regulator /
rectifier. Using a multimeter, perform an
Alternator
Output test.
See test procedure on Page 10.22.
damage. If no damage is found,
Repair or replace any damaged
components.
and 4000. Read battery voltage with the
multimeter. Readings should increase to
between 13.0 and 14.6 V D.C. Do they?
Does output meet specification?
condition, but the charging voltage does not
rise above battery voltage at the connector
or wire harness, replace the voltage regulator.
NOTE: Disconnect all accessories.
harness disconnected. Battery voltage must be
present on harness side of voltage regulator.
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